A great project to begin your explorations into the world of DIY sound synthesis, the PCB was designed with the beginner in mind. Board-mountable switches, socketed IC, hands-on knobs and switches for tone control, and a detailed silkscreen PCB to help you solder components right the first time.

The Eurorack 4093 Chaos NAND Synth Kit includes all the components that you will need to build it.

Power Draw: +/-20mA

Use 3 trimpots (one for each CV input) to dial in the amount of control voltage affecting the vactrol

8 HP

1.036″ Deep

Comes with power cable, 3mm screws and 2.5mm screws

Looking for some of the harder-to-find components such as the Vactrols, Potentiometers, and Audio Jacks? You can order them directly from us!

3 Comments

If I understand correctly, it seems you can’t bypass the vactrols on the stock design. Slews in pitch have certain atavistic characteristics that ultimately make it harder to express desired pulse train austerity. I wish very much bypass switches could be implemented. Constant slewing sounds silly.